CN109958395A - A kind of ground vacuum oiling device for oil drilling rotary steerable tool - Google Patents
A kind of ground vacuum oiling device for oil drilling rotary steerable tool Download PDFInfo
- Publication number
- CN109958395A CN109958395A CN201910190330.4A CN201910190330A CN109958395A CN 109958395 A CN109958395 A CN 109958395A CN 201910190330 A CN201910190330 A CN 201910190330A CN 109958395 A CN109958395 A CN 109958395A
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- Prior art keywords
- vacuum
- oil
- pipeline
- oiling
- hydraulic
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 13
- 238000010276 construction Methods 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 81
- 239000010720 hydraulic oil Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 18
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 14
- 229910052697 platinum Inorganic materials 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 9
- 239000007787 solid Substances 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 206010016766 flatulence Diseases 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/26—Supply reservoir or sump assemblies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of ground vacuum oiling device for oil drilling rotary steerable tool, apparatus main body includes the circulatory system, vacuum system, automatic control system and vacuum pressure balance pipeline.The circulatory system includes the connected quick coupling of oiling motor, filling pump, particle meter, oil pressure gauge, shut-off valve, filter, oil tank, feed line, oil return pipeline and pipeline；Vacuum system includes vacuum pump, vacuum meter, vacuum degree display unit, connecting pipeline and jointing；Control system includes computer, programmable logic controller (PLC), driving circuit power supply；It includes pressure-equalizing line, pipe joint and balancing plug that vacuum pressure, which balances pipeline,；The circulatory system, the rack construction of vacuum system and control system are installed；Temperature, power display unit.
Description
Technical field
Present invention design is related to measurement while-drilling instrument technical field, in particulars relate to a kind of for oil drilling rotary steering
Tool ground vacuum oiling device.
Background technique
It develops to the unconventional energy resource scales such as current shale gas, increases the demand of rotary steerable drilling system substantially
Add, pushing type rotary steerable drilling system has also obtained large-scale engineering applications as one such type without any exception.
Wherein, hydraulic module is the critical component for realizing pushing type rotary steering guidance system reliability application, and major function is to complete to lead
To the movement of order, guide digging is carried out according to guiding orders such as increasing hole angle, drop angle, increasing orientation, drop orientation, the steady orientation of hold angle, i.e.,
Well track drilling well task is completed according to the requirement of orientation engineer and geosteering teacher.It is led to guarantee that hydraulic module smoothly completes
It must assure that the stability and reliability of hydraulic module to instruction, the stability and reliability of hydraulic module are in addition to depending on accessory
Outside performance, the vacuum degree of institute's fluid injection pressure oil also has a major impact it, if hydraulic oil contains bubble, bubble is in underground high temperature
Under the action of can expand and become larger, will cause the accelerated wear test of spare and accessory parts and the tympanites deformation of rubber tube, hydraulic pressure unit executes effect
Rate can be substantially reduced, service life can have a greatly reduced quality, therefore improve oiling vacuum degree, and the air bubble in reduction hydraulic oil is especially
Seem important.
At present vacuum oiling device that there are vacuum degrees is low, full manual operation, oiling pressure process are uneven, cannot
Meet needs of production, therefore improves oiling vacuum degree, keeps oiling pressure process balance and realize that full automatic working is anxious
Problem to be solved.
Summary of the invention
The present invention is directed in view of the foregoing defects the prior art has and insufficient, a kind of vacuum oiling device, this hair are provided
The bright requirement that can satisfy rotary steering hydraulic module vacuum oil first, followed by realization oiling pressure process balance and automatic
Control requires, and is to realize the vacuum level requirements for meeting oiling again.
The present invention is realized by using following technical proposals:
A kind of vacuum oiling device according to the present invention, including by oiling motor, filling pump, oiling pipeline, fill cup hydraulic table,
The circulatory system of particle meter, shut-off valve, oil return pipeline, filter and oil tank composition；Vacuum pump, vacuum meter and vacuum degree display are single
The vacuum system of member, vacuum pipeline composition；The balance system of pressure-equalizing line, balancing plug composition；Computer may be programmed and patrol
Collect the control system of controller, driving circuit power supply composition；Temperature display unit, power display unit；The circulatory system, vacuum are installed
System, control system, the rack construction of display unit.
The circulatory system, oil tank are the tank bodies being fully sealed, and only fill a certain amount of hydraulic oil, upper part in oil tank
There are space, tank bottom connects oiling pipeline, and top connects back to oil pipeline, vacuum pipeline and balance pipeline, the oil in oil tank
Enter filling pump by oiling pipeline, hydraulic oil is further conveyed to hydraulic module, liquid by open shut-off valve by filling pump
Hydraulic oil in die block returns to oil tank by oil return pipeline and filter.Divide sub-fraction from oiling pipeline during oiling
Hydraulic oil passes through particle meter, and particle meter and display unit show the size and content of solid particle contained in hydraulic oil, guarantee
Solid particle is less than certain amount.Fill cup hydraulic table mainly shows the pressure of oiling pipeline, according to the performance and pipe of vacuum pump
Line internal diameter selects suitable fill cup hydraulic, reaches best oiling effect.Filter is solid by the biggish nocuousness of the oil of oil return pipeline
Body particle filtering falls, and guarantees the cleannes for the oil for returning to oil tank.The position that oiling pipeline and oil return pipeline are connected with hydraulic module
It is attached using quick coupling, guarantees quick operating requirement.
The vacuum system, vacuum pump are connected to oil tank by vacuum pipeline, by vacuum pump by the bubble in hydraulic oil
It is discharged as far as possible, vacuum meter is connected on vacuum pipeline, vacuum meter connects vacuum degree display unit, shows the vacuum of vacuum system
Degree, vacuum meter measured value are connected to hydraulic module progress oiling after reaching certain numerical value.
The balance system, balance pipeline both ends are separately connected roof and balancing plug, and balancing plug passes through screw
Or quick coupling is fixed on hydraulic module, major function is the pressure guaranteed inside and outside hydraulic module oil pocket in vacuum oil
Power keeps balance, prevents the capsule deformation in oil pocket, causes the deficiency or oiling failure of injection flow.
The control system, computer are connected with Programmable logical controller circuit, simultaneous computer RS232 interface, driving
Together with circuit power is assembled by communication with driving circuit power connection with force snesor, computer control software is by that can compile
Journey logic control circuit controls the operating of oiling motor and vacuum pump respectively, with reach according to computer software setting program into
The purpose of row oiling, while controlling driving circuit power supply and showing the size of power.
The temperature, power display unit, platinum resistance temperature sensor are mounted in oil tank and are immersed in hydraulic oil, platinum
Resistance temperature sensor connects temperature display unit to show the temperature of hydraulic oil during oiling, and control software is recorded
In, the power of force sensor measuring hydraulic module piston, and shown by power display unit, control software is equally also recorded
In, the initial alignment of thermograph value and power record value formation hydraulic pressure unit.
The rack construction, rack construction are mainly used to install fixed cycles system, vacuum system, balance system, display
Unit.
All display numerical value are similarly shown in a computer, and are recorded.
A kind of oiling implementation method of vacuum oiling device according to the present invention, it is realized by following steps:
(1) starting computer and control software, open vacuum pump by software, first fill to hydraulic oil according to vacuum level requirements
Dividing circulation to vacuumize, (using or fill new hydraulic oil for the first time will recycle at least 24 hours at room temperature, vacuumize
Interval will recycle 30 minutes or more for 12 hours), reach 0.5mBar or less to vacuum degree and carries out next step operation again；
(2) hydraulic module is mounted on hydraulic module fixture while vacuumizing；
(3) after vacuum degree reaches requirement, connect hydraulic module oiling pipeline and oil return pipeline and balance pipeline carry out
Oiling prepares；Shut-off valve is closed, hydraulic module take out by part oiling pipeline and oil return pipeline and balance pipeline true
Sky, the time vacuumized want 10-15 minutes, and vacuum degree reaches 0.5mBar or less；
(4) shut-off valve is opened, filling pump is opened by computer software, is infused according to computer control software automatic control
Oil；
(5) software design program includes: the information such as acquisition power, temperature, vacuum degree, granularity, oiling process control block (PCB), control
Opening time, time interval, shut-in time and the cycle-index of oiling motor and opening, opening the shut-in time for vacuum pump.
Beneficial effects of the present invention:
(1) requirement for meeting rotary steering hydraulic module vacuum oil greatly improves oiling vacuum degree, reduces hydraulic oil
Interior air bubble.
(2) it realizes oiling pressure process to balance, pressure balance when ensure that vacuum oil inside and outside hydraulic module oil pocket,
The technical issues of efficiently solving the capsule deformation in oil pocket.
(3) automation control requirement is met.
Detailed description of the invention
Fig. 1 is vacuum oiling device structural schematic diagram of the invention；
Wherein, 1. filling pump, 2. particle meter, 3. platinum resistance temperature sensor, 4. oil tank, 5. vacuum pump, 6. vacuum meter and vacuum
The communication of degree 7. filter of display unit, 8. driving circuit power supply 9. and 10. force snesor 11. of driving circuit power interface are cut
Only 12. computer of valve, 13. fill cup hydraulic table, 14. programmable logic controller (PLC), 15. oiling motor, 16. hydraulic module, 17. note
18. oil return pipeline of oil pipeline, 19. vacuum pipeline 20. balances 21. balancing plug of pipeline.
Specific embodiment
A kind of vacuum oiling device according to the present invention, mainly by filling pump, oiling pipeline, fill cup hydraulic table, particle
The circulatory system of meter, shut-off valve, oil return pipeline, filter and oil tank composition is vacuum pump, vacuum meter, vacuum degree display unit, true
The vacuum system of blank pipe line composition, the balance system of pressure-equalizing line, vacuum adapter, balancing plug composition, computer can be compiled
The control system of journey logic controller, driving circuit power supply composition, temperature, power display unit install the circulatory system, vacuum system
System, control system, the rack construction of display unit composition.
A kind of ground vacuum oiling device for oil drilling rotary steerable tool as shown in Figure 1, comprising: oiling electricity
Machine (15), filling pump (1), oiling pipeline (17), fill cup hydraulic table (13), particle meter (2), shut-off valve (11), hydraulic module
(16), the circulatory system of oil return pipeline (18), filter (7) and oil tank (4) composition；Vacuum pump (5), vacuum meter and vacuum degree are aobvious
Show that the vacuum system of unit (6), vacuum pipeline (19) composition, the vacuum system are connected with oil tank (4)；Balance pipeline (20),
The balance system of balancing plug (21) composition, the balance system are set between oil tank (4) and hydraulic module (16)；Computer
(12), programmable logic controller (PLC) (14), driving circuit power supply (8) and communication and driving circuit power interface (9) form
Control system, the control system is for controlling oiling motor (15) and vacuum pump (5)；Temperature indicator and power display composition
Display unit；The circulatory system, vacuum system, control system, the rack construction of display unit are installed.
Oil tank (4) is the tank body being fully sealed, and only fills a certain amount of hydraulic oil in oil tank (4), there are skies for upper part
Between, oil tank (4) bottom connects oiling pipeline (17), and top connects back to oil pipeline (18), vacuum pipeline (19) and balance pipeline
(20), oil tank (4) and hydraulic module are connected by oiling pipeline (17) with oil return pipeline (18), a closed loop are formed, in oiling
Filling pump (1), fill cup hydraulic table (13), particle meter (2), shut-off valve (11) are installed, between oil return pipeline (18) between pipeline (17)
It installs filter (7), oiling motor (15) provides power to filling pump (1).
Vacuum pump (5), vacuum pipeline (19) and oil tank (4) form an enclosure space, pacify between vacuum pipeline (19)
Fill vacuum meter.
Balance pipeline (20) both ends are separately connected at the top of oil tank (4) and balancing plug (21), balancing plug (21) pass through spiral shell
Nail or quick coupling are fixed on hydraulic module, balancing plug (21), balance pipeline (20), oil tank (4) and hydraulic module group
At another enclosure space, guarantee that the pressure inside and outside hydraulic module oil pocket keeps balance in vacuum oil.
Computer (12) software is opened by programmable logic controller (PLC) (14) control oiling motor (15) and vacuum pump (5)
It opens and shut-in time, simultaneous computer (12) software passes through communication and driving circuit power interface (9) and driving circuit power supply (8)
Establish the movement for communicating and controlling hydraulic pressure unit, and the numerical value of all displays of recording and displaying unit.
Platinum resistance temperature sensor (3) is mounted in oil tank and is immersed in hydraulic oil, platinum resistance temperature sensor (3)
Connection temperature display unit is recorded in control software, force snesor (10) with showing the temperature of hydraulic oil during oiling
The power of hydraulic module piston is measured, and is shown by power display unit, is equally also recorded in control software, thermograph
Value and power record value form the initial alignment of hydraulic pressure unit.
Rack construction is mainly used to install the circulatory system, vacuum system, balance system, display unit.
It is realized using the vacuum oil method of the vacuum oiling device by following steps:
Step 1) starts computer (12) and control software, vacuum pump (5) is opened by software, according to vacuum level requirements first to liquid
Pressure oil carries out sufficiently circulation and vacuumizes；
Hydraulic module (16) is mounted on hydraulic module (16) fixture while step 2 vacuumizes；
Step 3) after vacuum degree reaches requirement, connect hydraulic module (16) oiling pipeline (17) and oil return pipeline (18) and
It balances pipeline (20) and carries out oiling preparation；Close shut-off valve (11), by part oiling pipeline (17) and oil return pipeline (18) with
And balance pipeline (20) vacuumizes hydraulic module (16), the time vacuumized wants 10-15 minutes, and vacuum degree reaches
0.5mBar or less；
Step 4) opens shut-off valve (11), leads to computer (12) software and opens filling pump (1), controls software according to computer (12)
It automatically controls and carries out oiling；
After the completion of step 5) oiling, oiling pipeline (17) and oil return pipeline (18) are linked together, shut down computer (12).
The control software includes: that acquisition power, temperature, vacuum degree, granularity information and control oiling motor (15) are opened
Time, time interval, shut-in time and cycle-index and vacuum pump (5) are opened, open the shut-in time.
Using or fill for the first time new hydraulic oil in step 1) will recycle at least 24 hours at room temperature, vacuumize
Interval will recycle 30 minutes or more for 12 hours, and vacuum degree reaches 0.5mBar or less.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (6)
1. a kind of ground vacuum oiling device for oil drilling rotary steerable tool characterized by comprising oiling motor
(15), filling pump (1), oiling pipeline (17), fill cup hydraulic table (13), particle meter (2), shut-off valve (11), hydraulic module (16),
The circulatory system of oil return pipeline (18), filter (7) and oil tank (4) composition；Vacuum pump (5), vacuum meter and vacuum degree display are single
The vacuum system of first (6), vacuum pipeline (19) composition, the vacuum system are connected with oil tank (4)；Balance pipeline (20), balance
The balance system of connector (21) composition, the balance system are set between oil tank (4) and hydraulic module (16)；Computer
(12), programmable logic controller (PLC) (14), driving circuit power supply (8) and communication and driving circuit power interface (9) form
Control system, the control system is for controlling oiling motor (15) and vacuum pump (5)；Temperature indicator and power display composition
Display unit；The circulatory system, vacuum system, control system, the rack construction of display unit are installed.
2. being used for the ground vacuum oiling device of oil drilling rotary steerable tool as described in claim 1, which is characterized in that
Oil tank (4) is the tank body being fully sealed, and only fills a certain amount of hydraulic oil in oil tank (4), there are space, oil tanks for upper part
(4) bottom connection oiling pipeline (17), top connect back to oil pipeline (18), vacuum pipeline (19) and balance pipeline (20), oil tank
(4) it is connected by oiling pipeline (17) with oil return pipeline (18) with hydraulic module, a closed loop is formed, between oiling pipeline (17)
Filling pump (1), fill cup hydraulic table (13), particle meter (2), shut-off valve (11) are installed, filter is installed between oil return pipeline (18)
(7), oiling motor (15) provides power to filling pump (1).
3. being used for the ground vacuum oiling device of oil drilling rotary steerable tool as described in claim 1, it is characterised in that:
Vacuum pump (5), vacuum pipeline (19) and oil tank (4) form an enclosure space, install vacuum meter between vacuum pipeline (19).
4. being used for the ground vacuum oiling device of oil drilling rotary steerable tool as described in claim 1, it is characterised in that:
Balance pipeline (20) both ends are separately connected at the top of oil tank (4) and balancing plug (21), and balancing plug (21) is by screw or fastly
Quick coupling is fixed on hydraulic module, balancing plug (21), balance pipeline (20), oil tank (4) and hydraulic module composition other one
A enclosure space guarantees that the pressure inside and outside hydraulic module oil pocket keeps balance in vacuum oil.
5. being used for the ground vacuum oiling device of oil drilling rotary steerable tool as described in claim 1, it is characterised in that:
Computer (12) software is unlatched and closed by programmable logic controller (PLC) (14) control oiling motor (15) and vacuum pump (5)
Time, simultaneous computer (12) software are established by communication and driving circuit power interface (9) and driving circuit power supply (8) and are communicated
And the movement of hydraulic pressure unit is controlled, and the numerical value of all displays of recording and displaying unit.
6. being used for the ground vacuum oiling device of oil drilling rotary steerable tool as described in claim 1, it is characterised in that:
Platinum resistance temperature sensor (3) is mounted in oil tank and is immersed in hydraulic oil, and platinum resistance temperature sensor (3) connects temperature
Display unit is recorded in control software with showing the temperature of hydraulic oil during oiling, and force snesor (10) measurement is hydraulic
The power of module piston, and shown by power display unit, it is equally also recorded in control software, thermograph value and power note
Record is worth the initial alignment to form hydraulic pressure unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910190330.4A CN109958395B (en) | 2019-03-13 | 2019-03-13 | Ground vacuum oil injection device for petroleum drilling rotary steering tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910190330.4A CN109958395B (en) | 2019-03-13 | 2019-03-13 | Ground vacuum oil injection device for petroleum drilling rotary steering tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109958395A true CN109958395A (en) | 2019-07-02 |
| CN109958395B CN109958395B (en) | 2020-09-11 |
Family
ID=67024252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910190330.4A Active CN109958395B (en) | 2019-03-13 | 2019-03-13 | Ground vacuum oil injection device for petroleum drilling rotary steering tool |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3397745A (en) * | 1966-03-08 | 1968-08-20 | Carl Owens | Vacuum-insulated steam-injection system for oil wells |
| RO84950B1 (en) * | 1983-01-26 | 1984-09-30 | Alexandru Osnea | Crude oil recovery process and installation |
| CN201396142Y (en) * | 2009-03-19 | 2010-02-03 | 杭州丰禾石油科技有限公司 | Dual-induction probe vacuumizing and oiling device |
| CN102080534A (en) * | 2009-11-30 | 2011-06-01 | 上海神开石油化工装备股份有限公司 | Speed oil filling device for pulse generator of wireless inclinometer and using method thereof |
| CN201915950U (en) * | 2010-12-20 | 2011-08-03 | 航天科工惯性技术有限公司 | Equipment for vacuum filling oil into underground pulse transmitting device |
| CN205858316U (en) * | 2016-07-08 | 2017-01-04 | 中石化石油工程技术服务有限公司 | Oil well logging instrument vacuum takes out oiling device |
-
2019
- 2019-03-13 CN CN201910190330.4A patent/CN109958395B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3397745A (en) * | 1966-03-08 | 1968-08-20 | Carl Owens | Vacuum-insulated steam-injection system for oil wells |
| RO84950B1 (en) * | 1983-01-26 | 1984-09-30 | Alexandru Osnea | Crude oil recovery process and installation |
| CN201396142Y (en) * | 2009-03-19 | 2010-02-03 | 杭州丰禾石油科技有限公司 | Dual-induction probe vacuumizing and oiling device |
| CN102080534A (en) * | 2009-11-30 | 2011-06-01 | 上海神开石油化工装备股份有限公司 | Speed oil filling device for pulse generator of wireless inclinometer and using method thereof |
| CN201915950U (en) * | 2010-12-20 | 2011-08-03 | 航天科工惯性技术有限公司 | Equipment for vacuum filling oil into underground pulse transmitting device |
| CN205858316U (en) * | 2016-07-08 | 2017-01-04 | 中石化石油工程技术服务有限公司 | Oil well logging instrument vacuum takes out oiling device |
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| Publication number | Publication date |
|---|---|
| CN109958395B (en) | 2020-09-11 |
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